Posts from March 2020

In 1960s, Yaskawa Electric had produced distinctive DC servo motors one after another and came to commercialize AC servo motors in 1983 while making a new trend in the motor industry. Now, after more than thirty years, almost 100% operators in factory automation industry apply AC servo motors. Yaskawa’s industrial robots also apply AC servo motors manufactured in-house for their joints. 
 
Motors in general aim to work by rotating load continuously, however, servo motors also aim to respond to the target precisely and swiftly. By the way, do you know what “servo” means? The origin of the word is “servus” in Latin (or “slave” in English). Slaves obey the masters’ command and do as they are told. People started to use the word “servo” as it aims to control the target’s location, speed and route as it intended to. 
A dictionary describes, “a motor is a machine that converts electrical energy to mechanical energy.” In another words, the electrical energy is a “battery” and the mechanical energy is the “rotation.” To explain a motor physically, the well-known “Fleming’s left hand rule” is a good approach. When electric current flows through an electrical wire placed between two magnets facing with each other, it generates force. Electric current, magnetic field and motion respectively applies perpendicular directions each other just as when you open the middle finger (electric current), the forefinger (magnetic field) and the thumb (force) of your left hand respectively to mutually orthogonal axes. 
 
Then, why does electric current which flow through the electrical wire generate force? This is because when the electric current flows through the electrical wire, it generates magnetic field around. The magnetic field attracts or repels magnetic field from magnets, which generate force to move the electric wire. The electrical energy here is “electric current,” and the mechanical energy is “force.” 

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DON'T KEEP ON GOING 
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With over 30 years of experience in the Electric motor and automation industries we are distributors and resellers for a large number of major manufacturers: 
 
TEC Electric motors and Gearboxes 
TEC B56 Motors 
LS IS IE4 Motors 
Yaskawa inverter drives 
Yaskawa Servo 
TEC inverter drives 
Crompton Controls, motor starters 
Gefran, Controllers, indicators and sensors 
Baumer, Encoder 
Kingdom Products, fans, fan spares and motor capacitors 
Unipower & GIC, Load monitors and monitoring relays 
JVL Stepper Motors 
MATARA Linear Actuators 
Wittenstein, Gearboxes, Couplings and Servo Motors 
 
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